Shuttle for sewing-machines



(No Model.)

J. B. PRICE.

SHUTTLE FOR SEWING MACHINES.

No. 339,112. Patented Mar. 30, 1886.

llnrrep rates PATENT FFICE.

JOHN B. PRICE, OF VOLLASTON, MASSACHUSETTS, ASSIGNOR TO THE BISPOOL SEW'ING MACHINE COMPANY, OF KITTERY, MAINE.

SHUTTLE FOR SEWING-MACHINES.

EPECIEECATIGN forming part of Letters Patent No. 339,112, dated March 30,1886.

Application filed September '21, 1885.

To aZZ whom it may concern.-

Be it known that 1, JOHN B. PRICE, of \Vollaston, county of Norfolk, and State of lliassaehusetts, have invented an Improvement in Shuttles for Sewing Machines, of which the following description, in connection with the accompanying drawings, is a specification, like letters on the drawings representing like parts.

My invention relates particularly to that class of sewingmaehine shuttles adapted to receive within them an ordinary spool of commerce.

My invention consist-s,essentially, in a shuttle provided at its inner side with a journalbearing from which projects two arms constituting a skeleton frame-work, the two arms penetrating the sides of the shuttle and forming heels or ribs which fit into guideways or grooves in the shuttle-race. Vith this shuttle I have combined a tension spring and means, substantially as will be described, to hold the spool in place within the shuttle.

My invention also consists in a shuttle provided with an open slot for the convenient in sertion of the thread,a tension-spring fastened to the shuttle by means of a screw,and having at each end a lip inserted within a hole in the shuttle and bent beneath the inner wall thereof,combined with a guide fastened to the outer face of the shuttle and extending from one to the other extremity of the sh uttle,and a spoolcarrying spindle, and means, substantially as will be described, to keep the said spindle in place.

Other features of my invention will be pointed out in the claims at the end of this specification.

Figure 1 represents in perspective a shuttle embodying my invention Fig. 2, a longitudinal section of Fig. 1, showing the journalbearing and attached frame and the spool of thread in elevation; Fig. 3, a cross-section taken on the line a: 00, Fig. 1, and Fig. 4 a detail of the spool-carrying spindle.

Referring to the drawings, b represents the shuttlebody, which, in this instance, is preferably made from a single sheet of thin metal drawn or turned into its proper shape by any of the known or approved methods. The shut- Scrial No. 177,645. (No model.)

tle-body 1) contains a journal-bearing,O, having two arms, 1/ If, constituting a skeleton frame-work, B, the two arms I) I) projecting through slots in the periphery of the shuttlebody I) for sufficient distance to form ribs or keels,which are adapted to enter and travel in corresponding guideways or grooves made for the purpose in a shuttle-race-such, for instance, as shown in my application Serial No. 17 7 ,646, filed herewith.

The skeleton frame referred to and shown in Fig. 2 has a central hub or journal-bearing, G, and an arched end, D, one portion, d, of which bears against the inner periphery of the shuttle-bodymear its p0int,and serves to give greater strength to that part of the shuttlebody, the otherportion, (Z, forming a suitable rest for a spindle-holding spring, 8, which is attached thereto by a screw, 8.

The spring 8, at or near its outer end, is bent in such manner as to partially cover an opening in the hub or j ournal-bearing C at the far side, as shown in dotted lines in Fig. 3, so that when the spool-carrying spindle E, recessed as at c,is passed through the said spool and the opening in the bearing G. and its. rounded side bears against the said spring, the said spindle will raise the spring until the point of the spindle bears against the arched end D of the frame 0,-when by slightly rotating or turning thesaid spindle by means of the head F, having, as herein shown, four arms, (marked, 1 2 3 4,) the spring will drop into the recess 6, and thus secure the spindle in place.

The shuttle b is provided with a slot, a, for the easy and convenient insertion of thread under the tension-spring A, fastened to the shuttle-body by means of ascrew, a, the said spring having its pointed but bent ends passed into holes a a and bent under the shuttlewall. This tension-spring A is formed with a finger or fork, f, the point of which is bent to partially enter an opening, 0, in the shut tle-body, so that when the shuttle is to be threaded and the thread is passed into the slot a and underneath the tension-spring it raises the point of the forkf sufficiently to allow the thread to pass under it, and thereafter the thread is brought into the position shown clearly in Fig. 1, ready for sewing.

Fastened to the shuttle in any convenient manner is a guide, R, extending from one extreme point thereof to the other, and preferably on a line with'the upper edge of the rib I), which is for the purpose of obviating any possible chance of the needle or under thread being soiled against the raceway in which the shuttle moves.

The shuttle herein represented and shown is embodied in an application Serial No. 17 7 ,646, previously referred to, where it is claimed or referred to when combined with the raceway, a hook, and other devices.

hen the spindle E is in position to'bring its notch e in place to beentered by the spring 8, to thereby prevent the longitudinal movement of the spindle E, the arm 1 covers the open-ended slot a,- but when the spindle E is rotated sufficiently to place the arm 2 in position to cover the said slot, the notch 6 will be so placed with relation to the spring 8 as to disengage it from the said notch, after which the spindle E may be withdrawn from the shuttle to remove an empty spool, H, or sup ply a full one.

I claim 1. The shnttlebody and its skeleton framework provided with a journal-bearing, O, and having two arms, I) b, the latter extending out through the sides of the shuttle-body to form heels or ribs, adapted to fit into guideways or grooves in the shuttle-race, substantially as described.

2. The shuttle-body and its skeleton framework provided with a journal-bearing, O,and having two arms, b b*,the arms ext-ending out through the sides of the shuttle-body to form heels or ribs adapted to fit into guideways or grooves in the shuttle-race, combined with a tension-spring and means to hold the spoolin place, substantially as described.

3. The shuttle-body I), its attached tensionspring A, and guide R, combined with the skeleton frame, the spring .9, and spool carrying spindle E, notched to receive the said spring, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JOHN B. PRICE.

\Vitnesses:

G. \V. GREGORY, F. CUTTER. 

